Enhanced tungstate electrochromism via formation of transparent conductive networks |
| |
Authors: | O Lavi GL Frey A Siegmann Y Ein-Eli |
| |
Institution: | aDepartment of Materials Engineering, Technion–Israel Institute of Technology, Technion City, Haifa 32000, Israel |
| |
Abstract: | Indium tin oxide (ITO) nanopowder was added to a polymer film containing WO3 · H2O particles to enhance electron conductivity and complimentary Li ion kinetics in an electrochromic device. Film conductivity increased dramatically with ITO content, suggesting the formation of conductive ITO networks in the film. The improved electron conductivity leads to a substantial increase of the effective Li+ ion diffusion coefficient in the composite film, from 10−11 to 10−9 cm2/s. Electrochromic contrast studies revealed that the presence of the ITO networks leads to enhanced blue/green color contrast. |
| |
Keywords: | Tungsten electrochromism ITO nanopowder Li kinetics Enhanced conductivity |
本文献已被 ScienceDirect 等数据库收录! |